Boring-machine



(No Model.)

J. J. DECKER. BORINGMGHINR No. 426,365. PatentedApr. 2 2, 1890.

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53212; This @lio/011mg@ s News Pneus c UNITED STATES PATENT OFFICE.

JOHN J. DECKER, OF LEVBEACI-l, NEV YORK.

BORING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 426,365, dated April22, 189(k). Application filed October 24, 1889. i Serial No. 328,023.(No model.)

T0 all whom, t may concern:

Be it known that I, JOHN J. DECKER, a citi- Zen of the United States,residing at Lewbeach, in the county of Sullivan and State of New York,have invented a new and useful Boring-Machine, of which the following isa specification.

This invention relates to that class of boring-machines in which a largenumber of drills or angers are simultaneously actuated for the purposeof boring in wood or similar material; and it has for its obj ect toconstruct a machine of this class which shall possess superioradvantages in point of simplicity and general efficiency, and in whichthe bits or angers may be readily removed and rearranged, as may bedesired, for the purpose of forming diiferent patterns.

The invention consists in the improved construction, arrangement, andcombination of parts, which will be hereinafter fully described, andparticularly pointed out in the claims.

In the drawings hereto annexed, Figure 1 is a perspective view of aboringdnachine equipped with my improvements. Fig. 2 is a verticaltransverse sectional view. Fig. 3 is an endV view. Fig. 4 is a detailview.

Like numerals of reference indicate like parts in all the figures.

1 designates the main frame of the machine, which is composed of fourvertical posts or uprights 2 2, which are suitably connected by means oftransverse and longitudinal braces 3. Two of the posts 2 at one side ofthe machine are provided with laterally-extending arms or brackets 4, tothe outer ends of which is attached a frame 5, between the upper andlower cross-bars of which G 6 is journaled a shaft '7, having aband-wheel or pulley 8,' to which motion may be imparted from anysuitable driving machinery.

The inner or adjacent sides of the vertical posts 2 of the main frameare provided with vertical grooves 9, to receive the tongues or tenons10 upon the ends of the spacing-blocks 11 11 and the supporting-blocks12. Said spacing and supporting blocks are provided with alignedvertical perforations 13, to receive the connectingdaolts 14;, which maybe held securely in position by means of setscrews 15, extendingtransversely through the supporting-blocks 12. Between thcsupporting-blocks 12 and spacingblocks 11 .and on top of the uppermostspacing-blocks 11 are adjusted the plates 16, having bearings for theshafts 17 of the drill or bits 18, which by properly arranging the saidbearings'may be arranged in any desired pattern with relation to eachother. Any desired number of spac ing blocks and plates may be used. 4Anumber of the drills or drill-shafts have their bearings in the twolowermost plates. Other drillshafts are extended through the plate nextabove, and so on, according to the number of drills used. Thedrill-shafts, which arejou rnaled only in the two lowermost plates, areprovided with drums 19, located between said plates. The drillshafts,which are additionally j ournaled in the third plate, are provided withdrums 19, located between the second and third plates, and so on,according to the number of plates. Each series of drums is connected bya belt or band 2O with the vertical drum or band-wheel 8, from whichmotion will thus be communicated simultaneously and at an equal rate ofspeed to all of the drills.

21 designates a vertically-movable table arranged in the lower part ofthe frame below the points of the drills, and 22 is a hand-lever, bymeans of which the said verticallysliding table may be manipulated.

The operation of this` invention will be readily understood from theforegoing description, taken in connection with the drawings heretoannexed. The material which is to be perforated may be placed in one ormore layers upon the verticallymovable table 21, which is then, whilethe drills or bits are all being rapidly rotated, moved slowly in anupward direction against the said drills,

`thereby causing the material supported thereon to be perforated withthe desired design.

My improved machine will be found particularly serviceable forperforating veneer or wood en seats and hacks for chairs and likematerial which is to be perforated with certain designs in which theperforations are frequently close together, inasmuch as the arrangementof the operating-pulleys upon IOO the drill-shafts in several tiers orseries between the plates 1G enables the operatin belt or bands to becarried from the pulley 8 around the drum upon each one of thedrillshafts. It will also be seen that by providing each one of theplates 16 with alarge number of perforations or bearings the drills maybe readily changed and arranged in many different designs. This may alsobe accomplished by exchanging the bearing-plates for others in Which thebearings or perforations have been differently located.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is-

1. The combination of the main frame having the uprights provided withvertical grooves in their inner sides, the supportingblocks, thespacing-blocks having outwardlyextending tenons, the bearing-plates, theconnecting-bolts extending vertically through the bearing-plates,spacing-blocks, and supporting-blocks, and the set-screws extendinglaterally through the latter and serving to secure the connecting-bolts,the drills j onrnaled vertically in the bearing-plates, and thevertically-arranged power-shaft connected by endless belts or bands withdrums located upon the drills between the several bearingplates,substantially as and for the purpose herein set forth.

2. The frame having nprights 2, provided with vertical grooves 9, thespacing-blocks 11, and supporting-blocks 12, having tenons 10, workingin said grooves, the bearing-plates 1G, the drill-shafts j ournaled inthe latter and having drums or band-Wheels, the verticalconnecting-bolts 14, the set-screws 15, operating mechanism for thedrills, and a vertically-movable table 21, all combined and operatingsubstantially as set forth.

In testimony that I claim the foregoing as my own l have hereto affixedmy signature in presence ot' two Witnesses.

JOHN J. DECKER.

Witnesses:

ABRAM BRODHEAD, JAMES BARNHART.

